mullinix



4 Sheets-Sheet 1.

(No Model.)

A. M. MULLINIX. ATTACHMENT FOR CABLE WAY DUMPS. No. 546,074.

Patented Sept. 10,1895.

4 SheetsSheet 3.

(No Model.)

v A. M. MULLINIX.

ATTACHMENT FOR CABLE WAY DUMPS.

Patented Sept. 10

(N0 Model.) I 4 Sheets-Sheet 4.

A.'M. MULLINIX. ATTACHMENT FOR CABLE WAY DUMPS.

No. 546,074. Patented Sept. 10, 1895.

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NITE'D STATES PATENT OFFICE ARTHUR M. MULLINIX, OF MARSI-IAL LTOWN, IOWA.

ATTACHMENT FOR CABLEWAY-DUMPS.

SPECIFICATION forming part of Letters Patent N 0. 546,074, dated September 1Q, 1895.

' Application filed Apr-i110, 1895. Serial No. 545,139. (No model.)

To all whom it may concern:

Be it known that I, ARTHUR MULLINIX,

a citizen of the United States, residing at Marshalltown, in the county of'Marshall and State of Iowa, have invented certain new and useful Improvements in an Attachment for Cableway-Dumps; and I do hereby declare the following to be a full, clear, and exactdescription of the invention,such as will enable others skilled in the art to which itappertains to make and use the same. This invention relates to improvements 'in that class of cablewaystor rope conveyers employed in removing the earth in excavating for canals, roadways, and work of a like character, and has for its object to provide'an attachment for dumping the skip, no matter inwhat direction, it may be traveling that is, away, from or toward the point where the operating power is located-so that the excavated material may be deposited on either side of the excavation withoutthe necessity of changing the position of the tower-supports. This invention has for its object more es- "peciallyto provide a device by means of which the skip or load may be dumped on its outward movementthat is, when traveling away from the head-tower and the material deposited on the opposite side of the out where the tail-tower is located.

The present arrangement to which this improve ment pertains only provides for discharging the load on one-side of the cut. that is, when the skip is traveling inwardly toward the hoisting-engine or head-tower. The character of the work and the lay of the land ofte'nrequire that the excavated material shallbe deposited on the opposite side of the out from the head-tower.

In the. drawings, Figure 1 is an elevation and diagram of a cableway, showing improvised tower-supports, the runof the cables, and the relative position of the hoisting-engine; Fig. 2, a plan and part section of the hoisting mechanism on line 2, Fig. 1, looking in the direction indicated by the arrow; Fig. 3, an elevation of a frame supporting a part of the shifting and dumping mechanism: Fi

4, an elevation and part section of Macrhouse, showing the hoisting mechanism; Fig. 5, a broken-away horizontal sectionon line 5, Fig. 2; Figs. 6 and 7, broken-away details;

Fig. 8,13, horizontal section on line 8, Fig. 4;

and Fig. 9, an elevation of a tripping-carriage.

A may represent the head-tower, A the tail-tower, A connecting the two, and which supports the traveling carriage A, from which the skip A is suspended.

The engines and operating-drum shown'in- Fig. 2 are the same'as those in ordinary use, with the addition of the improved features.

As will be observed, the drum is of a sec tional character, The central part B is rigidly mounted on the drum-shaft B and is provided with a gearwheel B with which a pinion B mounted on driving-shaft B, engages. By this means the required motion is transmittedto the central or drivingpart of thedrum. The hoist-- ing and dumping part 0 of the drum is looselymountedand carriesthe hoisting-cable O and These two parts of the dumping cable C the drum are adapted to have a frictional clutch-contact, as at a, the joining surfaces being beveled, as shown, and forming the usual conical clutch and imparting the rethe main or stationary cable consisting of three parts.

quired rotary motion to the drum-part C,

which is thrown into and out of engagement The drum part D. carries the by a lever 0 endless cable D and has the same frictional clutch engagement with the driving-part of the drum as the part carrying the hoistingcable, as shown at a. This part is thrown into and out of engagement by a lever D. The drum part 0 is providedwith an enlarged drum part E, which is of -a greater diameter than the hoisting and dumping surfaces. The flanged edge a of the part E is cut out atone point to provide a recess a The foregoing description relates to theordinary operating-drum arrangement, the improved attachment being next described.

A bolt a, Fig. 5, is inserted in the drum part E, the 'outer projecting head end terminating ina hook a Figs. 2 and 5. To a part of a platform F, on Which the operator stands, is pivoted the lower end of alever a, as ata The upper end of this lever is forked or bifurcated, as shown in Fig. 7, and bowed inwardly in the direction of the drum, as at a, Fig. 5. An operating or hand-shifting lever a is pivoted, as at a tt part of the platform, the upper loose and extending upward ly within convenient reach of the operator. These two levers are connectedbya link b and are retained in their normal position by a spring b. One end ofan auxiliary dump cable G terminates in a loop b, Fig. 6, and is loosely retained in position, Fig. 5, against the inner side of the fork end of lever a, by an eyebol t b a stop or button b resting on the eyebolt. The loop I; is in line with the hook end of the bolt (1, and by throwing forward lever a" the loop end of the cable is moved forward into the pathway of the hook-bolt, which will then engage therewith. The fork end holds the loop in position and conveniently allows the hook to engage it without engaging the lever. A framesupport is located in advance of the hoisting-engines and drum and consists of a base part G and uprights II II and II, as shown in Figs. 3, 4, and S. The cable G runs down undera sheave Z1 forward to and under a sheave b and then straight up between the frame-timbers ll ll and is secured to the lower end of an eyebolt b Figs. 3 and 9, inserted in the lower end of a vertically-moving tripping-carriage 11 The guide-bars b lr of the carriage engage with the rabbct-grooves b of the framc-uprights and guide the carriage in its np-anddown movement. A spring dis coiled on bolt If and serves to ease the action and break the force of the concussion of the drum connection when the opposite end of cable G is engaged. A sheave d is looselymounted on a shaft (1 in the carriage-frame and is in the pathway of the dumping-cable C, bearing on the upper side thereof, as indicated in Fig. 4. The guard (F retains the cable (F in its proper position with reference to its sheave. Two friction-rollers d and 12 are provided with suitable hearings in the supporting-frame on opposite sides and serve to guide and ease the run of the main dumping-cable when drawn down out of its direct path by the downward movement of the tripping-carriage, as indicated in Fig. 1. To the upper end of carriage ll is connected one end of weight-cable d, which runs up over companion-sheaves (F, journaled in the top of the frame, and then down between the inside f rame-timber ll and the outside one II to a counterweight (l sus pended therefrom. Th is weight is guided up and down between said timbers or uprights and may consist of a box of sand, as shown in Fig. 8, or any other suitable arrangement.

The connection, arrangement, and operation with reference to the traveling carriage A and the skip connections are of the usual order and will be readily understood.

Under the ordinary arrangement the cable which controls the dump-block is, as the load is hoisted and while traveling, wound on a drum of the same diameter as the hoistingdrnm and is subjected to no strain whatever.

'hen it is desired to dump the load, the cable of the dump-block is forced over by the operator to engage with the recess in the flange of the drum E and the dumping-cable drawn over and wound on said drum at a higher rate of speed than the hoisting-cable and the rear end of the skip elevated until the load is discharged. This provides, however, for only dumping the load when the skip is traveling toward the head-tower.

The improvement set forth in the present application provides a means for dumping the load when the skip is traveling in the opposite direction-that is, toward the tailtower-so that the combination of the old and the new features provides for the dumping of the load no matter in which direction the skip may be traveling.

It will be understood that the main dumping-cable C is the one ordinarilyused in this class of machines and dumps the load on one side of the excavation only. The auxiliary or additional dump-cable G is a part of the improved attachment; and atfords. means whereby the load is dumped on the opposite side of the excavation from that of the dumpcable thus providing an apparatus wherein the material excavated may be discharged on either side of the cut at the will of the operator without the necessity of transferring the operating power from one side of the cut to the other. 'hen the auxiliary cable is used, the main cable is made to assume the position shown bythe diagram in Fig. 1 and indicated by dotted lines in Fig. 4.

The operation of the improved attachment is as follows: 'hen the load is to be dumped with the skip traveling toward the tail-tower, the operator moves the hand-lever a toward the drums, which imparts a corresponding movement to lever a and brings the loop end of cable G into position to be engaged by the hook end of bolt 0", projecting from the drum E and winding said cable thereon, which has the effect of drawing down the trippingcarriage ll, and with it the dumping-cable, to the position illustrated in Fig. 1, and thus tipping the skip and dumping the load. 'hen the motion of the drum is reversed, the cable G unwinds and the tripping-carriage and dumping-cables are automatically returned to their normal position by the counterpoise.

Thus the auxiliary attachment is always in position for use without requiring any change or alteration in the usual arrangement for dumping on one side of the excavation.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a cable-way dump, the combination with the enlarged rotatable drum-part, of a bolt inserted therein and presenting a hook projection, a lever, provided with a forked-end and having a suitable pivotal connection, a second or hand-lever, pivotally supported, and a link connecting said levels, whereby a forward movement of the hand-lever brings an object supported by the forked-lever into po sition to be engaged by the hook-projection on said drum, substantially as described.

2. In a. cable-way dump, the combination I with a hoisting and dumping-drum, havin'g' vcoiled on the larger partof said drum, a tripoonnected to andautomatically returning said parts 0! difierent diameters, the main dumping-cable, an auxiliary dumping-cablqhaving one end in position to engage with and be ping-carriage, connected to the opposite end of said cable and located'iu the path of and bearing on the upper side of the main dumplug-cable, a frame-support, in which said carrings is adapted to have a vertical movement, and means for returning said carriage to its normal position during the time that the aux.- iliary cable'lsbeing unwound from the drum, substantially as described.

3. In a cable-way dump, the combination with a main dumping-cable, of an auxiliary dumping-cable, adapted to be wound on the d n mping-dru m,a tripping-carriage, connected to one end of the auxiliary cable, a frame-support, in which the carriage has a vertical movement, a sheave, mounted in said carriage and having frictional contact with the upper side of the main cable, and a weight-attachment,

carriage to its normal position whenfthe strain of the auxiliary-cable is relaxed, substantially as described. y

4. In a cable-way dump, the combination with a rotatable drum, a book-bolt projecting Y spring coiled on said therefrom, an auxiliary dumping-cablqhaving a loop formed on one end thereof adever, having a bifurcated end and loosely retaining said loopin place, aThand shifting-lever, connectetLwith' the first ever, whereby a-forward movement of the hand-lever'throws said loop into the. path of said hook-boleto. be. engaged thereby,.substantially as described;

5. In a cable-way dump, the combinationwith a rotatable drum, of an auxiliary duinp-t ing-cable, having one end in position to be coiled on said drum,atripping-carri eye-bolt, connecting the opposite end the auxiliarycable ;with said carriage, and a bolt, substantially as described. a 1 i r 6. In a cable-way dump, the combination of the main dumping-cable, the anxiliary dumping cable, the tripping-carriage, the support- .ing-frame, and the guide-sheaves, mounted on opposite sides of said frame, substantially as described.

In testimony whereof I aflix my signature presence-of two witnesses.

I ARTHUR M. MULLIN IX. Witnesses:

II; M. FREEMAN, L. B. CQlIPLAND 

